Welcome to SMS Factory
Welcome to the Textingline API — a RESTful messaging platform for sending SMS and MMS at scale. Whether you're delivering transactional notifications, verification codes, or marketing broadcasts, the API gives you full programmatic control over your messaging.
Quick Start
Send your first message in under 5 minutesAPI Reference
Explore endpoints, parameters, and response schemasAuthentication
Set up API keys and secure your integrationMessaging Guides
Send a Message
Send an SMS or MMS to a single recipientBroadcast
Deliver the same message to up to 50,000 recipientsMMS & Media
Attach images, videos, and files to your messagesIdempotency
Safely retry requests without sending duplicatesCompliance
Understand carrier content rules and SHAFT policiesPhone Numbers
Manage sender numbers assigned to your accountThe Basics
Authentication
HTTP Basic Auth with your API Key ID and SecretError Codes
Full reference of error codes and troubleshooting tipsRate Limits
Understand request limits and how to handle 429 responsesWebhooks
Receive delivery receipts and status updates in real timeSDKs & Libraries
Official clients for Node.js, Python, and moreChangelog
Track API updates, new features, and deprecationsUpdated about 1 month ago